ensures media xml cache is rebuilt on upgrade

src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSixTwoZero/RemoveCachedRecycleMediaXml.cs

@@ -0,0 +1,31 @@
+using Umbraco.Core.Configuration;
+using Umbraco.Core.Services;
+
+namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSixTwoZero
+{
+    /// <summary>
+    /// Due to this bug: http://issues.umbraco.org/issue/U4-3820 we need to remove the cached media
+    /// xml found in the cmsContentXml table for any media that has been recycled.
+    /// </summary>
+    [Migration("6.2.0", 1, GlobalSettings.UmbracoMigrationName)]
+    public class RemoveCachedRecycleMediaXml : MigrationBase
+    {
+        public override void Up()
+        {
+            //now that the controlId column is renamed and now a string we need to convert
+            if (Context == null || Context.Database == null) return;
+
+            Execute.Code(database =>
+                {
+                    var mediasvc = (MediaService)ApplicationContext.Current.Services.MediaService;
+                    mediasvc.RebuildXmlStructures();
+
+                    return string.Empty;
+                });
+        }
+
+        public override void Down()
+        {
+        }
+    }
+}

src/Umbraco.Core/Umbraco.Core.csproj

@@ -189,6 +189,7 @@
     <Compile Include="Models\PublishedContent\IPublishedContentModelFactory.cs" />
     <Compile Include="Models\PublishedContent\PublishedContentModel.cs" />
     <Compile Include="Models\PublishedContent\PublishedContentModelFactoryResolver.cs" />
+    <Compile Include="Persistence\Migrations\Upgrades\TargetVersionSixTwoZero\RemoveCachedRecycleMediaXml.cs" />
     <Compile Include="PropertyEditors\PropertyCacheValue.cs" />
     <Compile Include="PropertyEditors\PropertyValueCacheAttribute.cs" />
     <Compile Include="PropertyEditors\PropertyValueTypeAttribute.cs" />